I have a friend (she and her husband are ministers) with a used laptop that was donated to her. My friend’s laptop does not recognize anything new plugged into any USB port. It still recognizes things that were used with the computer before they got it. She has asked me to do some things for her, like clean up her computer, do word processing and excel-type stuff, etc. What can I check/do to help it recognize things? I am sorry, but I do not remember the model or serial numbers of the computer. I THINK it is a Compaq, running Windows Vista.